During further research, we have discovered that other router
manufacturers are also vulnerable to the same vulnerability, since
vulnerable Broadcom UPnP stack is used across multiple router vendors.

According to data from Rapid7, from 80 million routers discovered
during data gathering on the internet, ~15 million had Broadcom UPnP.
More info available here:
http://information.rapid7.com/upnp-webcast-video-page.html

Below is the partial list of other vulnerable router manufacturers and
models. Thanks to HD Moore of Rapid7 for data.